B4J Question Xml2Map didn't get all the elements

Sub getXmlMap(xmlstring As String) As Map
    Dim ParsedData As Map
    Dim xm As Xml2Map
    xm.Initialize
    ParsedData = xm.Parse(xmlstring)
    Return ParsedData
End Sub

Sub ListView1_MouseClicked (EventData As MouseEvent)
        '...
        Dim spreadMap As Map
        spreadMap=getXmlMap(spreadString)
    Dim root As Map
    root=spreadMap.Get("idPkg:Spread")
    Dim Spread As Map
    Spread=root.Get("Spread")
        Dim TextFramesList As List
    TextFramesList=GetElements(Spread,"TextFrame")
    Log(TextFramesList.Size)
        'size:14
End Sub